The juxtaposition of the bright sky over the mine opening is a good composition; the tonality reminds me of ilford XP2. The vignetting and burning in/darkening of the top of the near pillar and side of the shaft are a bit heavy handed, I'd dodge it a bit so it was more in sync with the far pillar, and not so evident against the bright sky.
For an empty and desolate scene, it has a lot of drama!